The Apple iPhone XR Review: A Different Display Leads To Brilliant Battery Life
by Andrei Frumusanu on February 5, 2019 9:45 AM EST- Posted in
- Mobile
- Apple
- Smartphones
- iPhone XR
Battery Life - Excellent
For all their strengths, battery life is the one aspect where things didn’t quite pan out for the iPhone XS and XS Max. Even though Apple promised that the phones would see longer battery lifetimes in day-to-day usage, in our tests we weren’t able to replicate this. The main reason for both models not being able to match the battery life of the iPhone 8 and 8 Plus is because of their significantly higher base power consumption. I’ve attributed this to the OLED display – here either the OLED panel itself or the DDIC driving the panel see a big degradation in base power consumption, amounting to an extra 150mW. This is a figure that is unavoidable and a power drain that will be present any time the screen is on – no matter the actual display brightness.
The iPhone XR avoids this issue as it uses a more conventional LCD screen:
As expected, because the XR doesn’t suffer from the same high base power consumption, this significantly helps the actual battery life results for the phone. Here we see the iPhone XR reach the highest battery runtimes of any past iPhone – almost beating some of the record holders – and is only outmatched by the more recent Mate 20 with its 33% larger battery.
The results here are a lot more in line with the iPhone 8 Plus, and better represent the overall power efficiency improvements of the A12 SoC. Compared to the iPhone XS and XS Max, the XR lasts 37% and 25% longer respectively in our test.
Overall, if battery life is something you value the most, then the iPhone XR will absolutely not disappoint.
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Lolimaster - Thursday, February 7, 2019 - link
The resolution is just craptastic vs a 5.8" S9 where you can have TRUE 1080p RGB AMOLED when going 1080p in the options down from 1440 pentile mode.darkich - Thursday, February 7, 2019 - link
Wow, just wow.I find this comment to ironic because the only gripe I have with the XR is not the display not how ridiculously big bezels it has..as if it has a bumper case.
That some people can't see this is beyond me..
ss96 - Tuesday, February 5, 2019 - link
Hi Ian, do you have a number for the display's contrast ratio? Interested to know how it compares to previous iPhone LCDs.Also, what happened to the charts comparing contrast, color accuracy to the competing smartphones? Really miss those.
Andrei Frumusanu - Tuesday, February 5, 2019 - link
https://images.anandtech.com/doci/13912/XR-greysca...1450 to 1550:1 to depending on brightness.
As for the the accuracy charts, I think it lead to a lot of readers to too quickly jump to conclusions and misunderstand what the figures actually meant, and for example in the past we had some cases of phone A having a dE of say 2 vs a dE of 1 - in both cases the actual differences in this case are extremely small and in isolated conditions probably imperceptible. However because they had just looked up the chart they determined that phone B was that much better because the bar graphs were that much shorter. I think this was quite counter-productive to the analysis of some devices and something I wasn't that big of a fan of.
ss96 - Tuesday, February 5, 2019 - link
Hi Andrei, thanks for your answer. I liked those because it was easy to know what other devices scored without having to go to their respective review, but I understand that it may be misleading.MarcusMo - Wednesday, February 6, 2019 - link
I get what you mean regarding the dE comparison charts, however removing them all together seems like the nuclear option.Having review sites such as anandtech calling out poor accuracy again and again is part of the reason we’re seeing manufacturers finally care about this metric. Shaming them on a public comparison chart is a much more effective means towards that end then burying the numbers in each individual review.
A suggestion would be to include a cutoff line in the chart, declaring anything below this to be imperceptible to the human eye. That, and the Anandtech readerships ability to parse objective data (why we visit this site), should be enough to assuage any fears of misinterpretation.
mkozakewich - Wednesday, February 6, 2019 - link
You should turn those charts into some kind of logarithmic efficiency thing, where a dE of <=1 is 100% and a dE of 3 is 90%, or something like that.eastcoast_pete - Tuesday, February 5, 2019 - link
@Andrei: Thanks for this review. I largely agree with your analysis, but have an addition to your interpretation of Apple going below Full HD for the XR's display. Yes, build costs may well have been a little bit lower, but my suspicion is that, had the XR had even just an FHD display (otherwise identical in specs to the current one), the value proposition for the XS and XS Max would have been even more doubtful than it already is. Not that the XR is, by any means, a cheap phone - $ 749 for the 64GB entry-level model is a lot of money. But, I believe that Apple's decision to go with a below-FHD display for the XR was mainly to make it just that little less attractive so enough people still go for the premium models.fasterquieter - Tuesday, February 5, 2019 - link
I think the answer is much simpler. They determined years ago that 326ppi is sufficient as far as clarity goes. They have approaching a decade of software optimized for this 2X pixel count. Going slightly denser would have resulted in negligible image quality improvements and the need to downscale the image, like the Plus phones. That came with its own disadvantages. I think they made the right call.Zeross - Tuesday, February 5, 2019 - link
I think that you're perfectly right and In my opinion, something often overlooked is that the X and XS OLED displays are higher resolution mostly to compensate for the PenTile subpixels arrangement : the 458ppi figure is only true for green subpixels. Red and blue subpixels have a 324 sppi definition. So basically Apple have determined years ago that ~320ppi is good enough and the X (XS) screen resolution was chosen to ensure that all subpixels achieve this number. Of course I have no insight knowledge and I may be completely wrong but it would be a weird coincidence if by pure luck, the red and blue sppi of its latest phones is almost exactly the same that the one chosen in 2010 for the first retina iPhone.